This occurs when you complete an assignment, project, or other accomplishment and a co-worker, supervisor, executive or other employee either
a. claims the credit for the work accomplished
b. discredits the work accomplished for no apparent reason
c. requests a lot of useless modifications or asks a lot of pointless questions to make the work seem inadequate

This situation is typically encountered when interacting with people who either do no or little work, have no accomplishments, and or are lacking in grey matter

Short: WJ

The boss just workjacked my entire presentation that I worked on for two weeks on how to improve customer satisfaction.